Host: The Japan Society for Precision Engineering
Name : 2023 JSPE Spring Conference
Location : [in Japanese]
Date : March 14, 2023 - March 16, 2023
Pages 559-560
Image averaging with a convolution kernel consisting of brick-wall cutoff along salient edges is useful for robust estimates of an image manifold and its color statistics, but their fast computation is non-trivial. Although some simplification of such averaging by using half-box kernels has been proposed, the conventional methods require multiple filtering processes. In this research, we propose a fast algorithm for image averaging using half-box convolution kernels. Our algorithm is based on summing the total colors within adjacent rectangular regions, where these total colors are efficiently obtained by applying a half-radius box filter only once via the moving average method. Our numerical experiments show that the proposed method is faster than conventional algorithms.